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What should I discuss with my healthcare provider before taking liothyronine (Cytomel)?
Since thyroid hormone occurs naturally in the body, almost anyone can take liothyronine. However, you may not be able to use this medication if you have a thyroid disorder called thyrotoxicosis, or an adrenal gland problem that is not controlled by treatment.
To make sure you can safely take liothyronine, tell your doctor if you have any of these other conditions:
FDA pregnancy category A. Liothyronine is not expected to harm an unborn baby. However, tell your doctor if you become pregnant, since your dose needs may be different during pregnancy.
Small amounts of liothyronine can pass into breast milk, but this is not expected to harm a nursing baby. However, do not use this medication without telling your doctor if you are breast-feeding a baby.
How should I take liothyronine (Cytomel)?
Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label.
Liothyronine is usually taken once daily. Follow your doctor's instructions.
Your doctor may occasionally change your dose to make sure you get the best results.
If you are switching to liothyronine from any other thyroid medication, stop using the other medication before you start taking liothyronine.
To be sure this medication is helping your condition, your blood may need to be tested often. Visit your doctor regularly.
Keep using this medicine as directed, even if you feel well. You may need to take thyroid medication for the rest of your life.
Call your doctor if you notice any signs of thyroid toxicity, such as chest pain, fast or pounding heartbeats, feeling hot or nervous, or sweating more than usual.
If you need surgery, tell the surgeon ahead of time that you are using liothyronine. You may need to stop using the medicine for a short time.
Store at room temperature away from moisture and heat.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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